If you count the top deck boards you'll count 9 . A Sequoia has 12 . The boards on the end that are visible run vertically and not horizontal like most Sequoias, the handles are lacking the right contour and as you mentioned the doors supports are wrong, Weber used two not three, no cross member. The area where the ash pan should sit is not cut out and looks to be a shelf all the way across, and finally the magnet latches for the doors are located on the top and not on the bottom like this one.
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